Amnor was one of four Nephite spies sent by Alma² the Younger, then chief judge and commander of the Nephite armies, to watch the camp of the Amlicites around 87 B.C. (Alma 2:21-22). The others were Zeram, Manti, and Limher, and each went out with his own men. The Amlicites were Nephite dissenters who had consecrated Amlici their king after the voice of the people refused to make him king (Alma 2:7-9).
The spies returned the next day in haste and fear, reporting that in the land of Minon, above the land of Zarahemla, the Amlicites had joined a numerous host of Lamanites, who were already driving the Nephites in that land toward the city of Zarahemla (Alma 2:23-25). Alma’s forces met the combined army as it crossed the river Sidon and defeated it, and Alma killed Amlici in single combat (Alma 2:27-31). The records say nothing further about Amnor.